Saturday
March 28, 2015

Homework Help: Stastics

Posted by Mary on Sunday, March 7, 2010 at 2:40pm.

When we convert x-value to z- score and use Standard Normal distribution, which of the following statements is true?
a) The mean of z-score is zero and standard deviation of the z-scores is the same as
the standard deviation of original data
b) The mean and standard deviation of the z-scores is the same as the mean and standard deviation of original data
c) The mean of the z-scores is 0 and the standard deviation of z-scores is 1
d) The mean and the standard deviation of z-scores will be both zero

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